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Mastering Swift 5.3

You're reading from   Mastering Swift 5.3 Upgrade your knowledge and become an expert in the latest version of the Swift programming language

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Product type Paperback
Published in Nov 2020
Publisher Packt
ISBN-13 9781800562158
Length 418 pages
Edition 6th Edition
Languages
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Author (1):
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Jon Hoffman Jon Hoffman
Author Profile Icon Jon Hoffman
Jon Hoffman
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Table of Contents (23) Chapters Close

Preface 1. Taking the First Steps with Swift 2. Swift Documentation and Installing Swift FREE CHAPTER 3. Learning about Variables, Constants, Strings, and Operators 4. Optional Types 5. Using Swift Collections 6. Control Flow 7. Functions 8. Classes, Structures, and Protocols 9. Protocols and Protocol Extensions 10. Protocol-Oriented Design 11. Generics 12. Error Handling and Availability 13. Custom Subscripting 14. Working with Closures 15. Advanced and Custom Operators 16. Concurrency and Parallelism in Swift 17. Custom Value Types 18. Memory Management 19. Swift Formatting and Style Guide 20. Adopting Design Patterns in Swift 21. Other Books You May Enjoy
22. Index

Tuples

Tuples group multiple values into a single compound type. These values are not required to be of the same type.

The following example shows how to define a tuple:

var team = ("Boston", "Red Sox", 97, 65, 59.9)

In the preceding example, an unnamed tuple was created that contains two strings, two integers, and one double. The values of the tuple can be decomposed into a set of variables, as shown in the following example:

var team = ("Boston", "Red Sox", 97, 65, 59.9)
var (city, name, wins, losses, percent) = team

In the preceding code, the city variable will contain Boston, the name variable will contain Red Sox, the wins variable will contain 97, the losses variable will contain 65, and finally the percent variable will contain 59.9.

The values of the tuple can also be retrieved by specifying the location of the value. The following example shows how we can retrieve values by their location:

var team = (...
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